5.3 C: Tuning
188 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
C3-22: Motor 2 Slip Compensation Primary Delay Time
Functions for motor 2 in the same way that C3-02 functions for motor 1.
Refer to C3-02: Slip Compensation Primary Dela
y Time on page 186 for instructions on how to adjust this parameter.
Note: The default for V/f Control (E3-01 = 0) is 2000 ms. The default for Open Loop Vector Control (E3-01 = 2) is 200 ms.
C3-23: Motor 2 Slip Compensation Limit
Sets the upper limit for the slip compensation function as a percentage of the motor rated slip (E4-02).
The slip compensation limit is constant throughout the constant torque range (frequency reference E3-06). In the
constant power range (frequency reference E3-06), it is increased based on C3-23 and the output frequency as shown in
Figure 5.37.
Figure 5.37
Figure 5.37 Slip Compensation Limit
C3-24: Motor 2 Slip Compensation Selection during Regeneration
Functions for motor 2 in the same way that C3-04 functions for motor 1.
Setting 0: Disabled
Setting 1: Enabled (6 Hz and above)
Setting 2: Enabled (compensation provided wherever possible)
C4: Torque Compensation
The torque compensation function compensates for insufficient torque production at start-up or when a load is applied.
Note: Make sure the motor parameters and V/f pattern are set properly before setting torque compensation parameters.
C4-01: Torque Compensation Gain
Sets the gain for the torque compensation function.
Torque Compensation in V/f, V/f w/PG, and OLV/PM:
The drive calculates the motor primary voltage loss using the output current and the termination resistor value (E2-05 for
IM, E5-05 for PM motors) and then adjusts the output voltage to compensate insufficient torque at start or when load is
applied. The effects of this voltage compensation can be increased or decreased using parameter C4-01.
No. Parameter Name Setting Range Default
C3-22 Motor 2 Slip Compensation Primary Delay Time 0 to 10000 ms Determined by E3-01
No. Parameter Name Setting Range Default
C3-23 Motor 2 Slip Compensation Limit 0 to 250% 200%
No. Parameter Name Setting Range Default
C3-24 Motor 2 Slip Compensation Selection during Regeneration 0 to 2 0
No. Parameter Name Setting Range Default
C4-01 Torque Compensation Gain 0.00 to 2.50 Determined by A1-02
E3-04
E3-06
× C3-23
C3-23
E3-04
Maximum
Frequency
E3-06
Base
Frequency
Output Frequency
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